Crypto guides

Clear how-tos for people who hold their own coins: how to buy and swap crypto without sign-up, pick a network, check a transfer and never lose access to your wallet.

Chrome judge's gavel on a glass sound block next to an open gate with a switched-off ID scanner, a glowing coin rolling through the gate
Academy

Are No-KYC Crypto Exchanges Legal in 2027? EU, US, Russia and Taxes

Who must check ID by law, what changes in the EU, US and Russia in 2027, whether you still owe taxes, and where privacy ends and breaking the law begins.

9 min
A chrome fuel nozzle pours glowing violet liquid into a glass vessel shaped like the Ethereum logo, with a row of smaller flasks beside it
Academy

Ethereum gas fees in 2027: why they get high and how to pay less

What gas and gwei are, how an Ethereum fee is calculated, what an ETH or USDT transfer costs right now, why gas fees spike and how to pay less for them.

10 min
A glass funnel with glowing coins pouring through it, and a few coins flying off to the side through thin tubes
Academy

Why did I receive less crypto than I sent? Seven reasons and how to find yours

Why your wallet got fewer coins than you sent or than the exchange form promised: withdrawal fee, network, rate, minimum. How to find the cause step by step.

10 min
A stack of six glass slabs with an orange coin sealed in the bottom one and the top slab still settling into place
Academy

How many confirmations does bitcoin need, and why a swap waits for them

What a bitcoin confirmation is, how many a transfer or a swap waits for, why the first block can take an hour and how to check the status by TXID. Tables and answers.

10 min
A cracked glass bridge over a dark chasm and, beside it, a simple chrome window with a coin passing through
Academy

Crypto bridge vs swap: how to move coins between networks without ending up with a receipt instead of money

How a crypto bridge differs from a swap, what a wrapped token is, who you trust with your coins and how to move USDT from ERC20 to TRC20 without a bridge.

11 min
Four glass mailboxes of different shapes on one chrome post, with an identical orange coin dropping into each
Academy

Bitcoin address types: bc1, 1 and 3, how they differ and which one to use for a swap

How bitcoin addresses bc1q, bc1p, 3 and 1 differ, which one to use for a swap or an exchange withdrawal, where fees are lower and which mistakes cost money.

8 min
A glass battery full of mint light feeding energy through a pipe to a chrome turnstile with a glass coin waiting in front
Academy

USDT TRC20 fee and TRON energy: how much a transfer costs

How much a USDT transfer on TRON costs, what energy and bandwidth are, why you need TRX and how to pay less. A breakdown with 2026 numbers.

5 min
An orange glass bitcoin coin enters a prism and comes out as a silver-violet ether crystal
Academy

How to convert bitcoin to ethereum: step by step

How to convert bitcoin to ethereum: swap service, exchange or DEX, a step-by-step BTC to ETH swap, checking a 0x address, confirmations, gas and common mistakes.

11 min
A network of glass pneumatic tubes with a glowing mint coin capsule stuck at a junction behind dim capsules and an amber light on the valve
Academy

Why is my crypto transaction pending, and how do I get it unstuck?

Why your crypto transaction is pending: low fees, a full mempool, a stuck nonce, TRON energy. How to check it by TXID, speed it up with RBF or CPFP and avoid scams.

12 min
A glowing mint coin on black glass at a fork of three translucent paths leading to a glass tower with a turnstile, a small lit kiosk window and a floating lattice of chrome gears
Academy

Crypto exchange vs instant swap vs DEX: which one to use and how they differ

Crypto exchange vs swap service vs DEX compared point by point: KYC, custody, pricing, cross-chain swaps, fees, gas and risks. Which one fits your trade.

12 min
Glass hourglass: glowing mint liquid flows down and solidifies into an amber-orange crystal
Academy

How to buy bitcoin with USDT without an exchange

How to buy bitcoin with USDT without an exchange account: CEX, P2P, DEX or a swap service, which USDT network to send from, which BTC address to use and common mistakes.

10 min
A coin rises in a glass canal lock between a red channel and a blue-and-gold one as the right gate opens
Academy

How to convert USDT TRC20 to ERC20 or BEP20: swap, exchange or bridge

Convert USDT TRC20 to ERC20 or BEP20: why you can't send to a 0x address, swap vs exchange vs bridge, network fees as of October 4, 2026, common mistakes.

10 min